304884-54-6Relevant articles and documents
Structure-based discovery of new selective small-molecule sirtuin 5 inhibitors
Liu, Sha,Ji, Sen,Yu, Zhu-Jun,Wang, Hua-Li,Cheng, Xu,Li, Wei-Jian,Jing, Li,Yu, Yamei,Chen, Qiang,Yang, Ling-Ling,Li, Guo-Bo,Wu, Yong
, p. 257 - 268 (2017/12/29)
Human sirtuin 5 (SIRT5) is a protein deacylase regulating metabolic pathways and stress responses and is implicated in metabolism-related diseases. Small-molecule inhibitors for SIRT5 are sought as chemical tools and potential therapeutics. Herein, we proposed a customized virtual screening approach targeting catalytically important and unique residues Tyr102 and Arg105 of SIRT5. Of the 20 tested virtual screening hits, six compounds displayed marked inhibitory activities against SIRT5. For the hit compound 19, a series of newly synthesized (E)-2-cyano-N-phenyl-3-(5-phenylfuran-2-yl)acrylamide derivatives/analogues were carried out structure–activity relationship analyses, resulting in new more potent inhibitors, among which 37 displayed the most potent inhibition to SIRT5 with an IC50 value of 5.59?±?0.75?μM. The biochemical studies revealed that 37 likely acts via competitive inhibition with the succinyl-lysine substrate, rather than the NAD+ cofactor, and it manifested substantial selectivity for SIRT5 over SIRT2 and SIRT6. This study will aid further efforts to develop new selective SIRT5 inhibitors as tools and therapeutics.
Functionally substituted isoxazoles and isothiazoles: Synthesis, palladium(II) complexes and their catalytic activity
Bumagin,Zelenkovskii,Kletskov,Petkevich,Dikusar,Potkin
, p. 68 - 81 (2016/03/12)
Functionally substituted 5-(p-tolyl)isoxazoles and 4,5-dichloroisothiazoles, whose molecules contain azomethine, amino, carboxyl, and ester moieties in various combinations in the aromatic ring in the position 3 of heterocycle, were synthesized. Synthesis of complexes of Pd(II) with carboxyl derivative of 1,2-azoles was performed. They show high catalytic activity in the Suzuki reaction in aqueous media.
Synthesis of [11C]CX-6258 as a new PET tracer for imaging of Pim kinases in cancer
Wang, Min,Tzintzun, Reynaldo,Gao, Mingzhang,Xu, Zhidong,Zheng, Qi-Huang
, p. 3831 - 3835 (2015/08/24)
Abstract The reference standard CX-6258 {(E)-5-chloro-3-((5-(3-(4-methyl-1,4-diazepane-1-carbonyl)phenyl)furan-2-yl)methylene)indolin-2-one, 4a} and its desmethylated precursor N-desmethyl-CX-6258 {(E)-3-((5-(3-(1,4-diazepane-1-carbonyl)phenyl)furan-2-yl)methylene)-5-chloroindolin-2-one, 5} for radiolabeling were synthesized from 5-bromo-2-furaldehyde and 3-carboxybenzeneboronic acid in 3 and 4 steps with 29-49% and 24-32% overall chemical yield, respectively. The target tracer [11C]CX-6258 {(E)-5-chloro-3-((5-(3-(4-[11C]methyl-1,4-diazepane-1-carbonyl)phenyl)furan-2-yl)methylene)indolin-2-one, [11C]4a} was prepared from N-desmethyl-CX-6258 (5) with [11C]CH3OTf under basic condition (2 N NaOH) through N-[11C]methylation and isolated by HPLC combined with solid-phase extraction (SPE) in 40-50% radiochemical yield based on [11C]CO2 and decay corrected to end of bombardment (EOB) with 370-1110 GBq/μmol specific activity at EOB.